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[web] notify user if something failed in the backend

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This commit is contained in:
lare 2023-06-14 08:52:17 +02:00
parent 67f10102b3
commit 09da5ec830
2 changed files with 53 additions and 32 deletions
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6
web/backend/main.py
View file

@ -391,8 +391,9 @@ def peerings_new():
if not peering_valid:
return render_template("peerings-new.html", session=session, config=config, peerings=peerings, msg=peering_or_msg), 400
if not peerings.add_peering(session["user-data"]["asn"], request.args["node"], session["user-data"]["mnt"], peering_or_msg["peer-wgkey"], peering_or_msg["peer-endpoint"], peering_or_msg["peer-v6ll"], peering_or_msg["peer-v4"], peering_or_msg["peer-v6"], peering_or_msg["bgp-mp"], peering_or_msg["bgp-enh"]):
return render_template("peerings-new.html", session=session, config=config, peerings=peerings, msg="this ASN already has a peering with the requested node"), 400
success, code = peerings.add_peering(session["user-data"]["asn"], request.args["node"], session["user-data"]["mnt"], peering_or_msg["peer-wgkey"], peering_or_msg["peer-endpoint"], peering_or_msg["peer-v6ll"], peering_or_msg["peer-v4"], peering_or_msg["peer-v6"], peering_or_msg["bgp-mp"], peering_or_msg["bgp-enh"])
if not success:
return render_template("peerings-new.html", session=session, config=config, peerings=peerings, msg="this ASN already has a peering with the requested node or something failed in the backend, please retry later"), code
return redirect(f"{config['base-dir']}peerings")
@ -411,6 +412,7 @@ def peerings_view():
elif request.method == "DELETE":
return peerings_delete()
else:
# shouldn't get here
abort(405)

79
web/backend/peering_manager.py
View file

@ -15,14 +15,21 @@ class NodeCommunicator:
self.__api_addr = config["api-con"]
def update(self, action: str, peering: dict):
if action == "add":
print(requests.post(f"{self.__api_addr}peerings", json=peering))
elif action == "update":
print(requests.put(f"{self.__api_addr}peerings", json=peering))
elif action == "delete":
print(requests.delete(f"{self.__api_addr}peerings", json=peering))
else:
return 400
try:
if action == "add":
req = requests.post(f"{self.__api_addr}peerings", json=peering, timeout=6)
elif action == "update":
req = requests.put(f"{self.__api_addr}peerings", json=peering, timeout=6)
elif action == "delete":
req = requests.delete(f"{self.__api_addr}peerings", json=peering, timeout=6)
else:
return 400
# should only get here if a request was "successful" (not necessarily http code 200)
return req.status_code
except requests.exceptions.ReadTimeout:
# if it took more than timeout for the client to respond
return 504
class PeeringManager:
@ -78,15 +85,13 @@ class PeeringManager:
new_peering: if mode=="update" the new peering to update to
"""
if peering["node"] in self._nodes:
#thread = threading.Thread(target=
self._nodes[peering["node"]].update(#), kwargs={
action=action, peering = peering if not new_peering else new_peering#, })
)
#thread.start()
#self._threads.append(thread)
return_code = self._nodes[peering["node"]].update(action=action, peering = peering if not new_peering else new_peering)
if return_code in [200, 201]:
return True, return_code
else:
return False, return_code
else:
return False
return False, 404
def _update_amounts(self):
__new = {}
@ -158,10 +163,14 @@ class PeeringManager:
peering = {"MNT": mnt, "ASN": asn, "node": node, "wg_key": wg_key, "endpoint": endpoint,
"ipv6ll": ipv6ll, "ipv4": ipv4, "ipv6": ipv6, "bgp_mp": bgp_mp, "bgp_enh": bgp_enh}
success, code = self._update_nodes("add", peering=peering)
if not success:
# if ssomething failed notify user and don't add it to the list
return False, code
#
self.peerings["asn"][asn].append(peering)
self._update_nodes("add", peering=peering)
self._save_peerings()
return True
return True, code
def update_peering(self, asn, node, mnt, wg_key, endpoint=None, ipv6ll=None, ipv4=None, ipv6=None, bgp_mp=True, bgp_enh=True):
# check if this MNT already has a/this asn
@ -170,13 +179,15 @@ class PeeringManager:
# ... and add it if it hasn't
self.peerings[mnt].append(asn)
except KeyError:
# ... and cerate it if it doesn't have any yet
# ... and create it if it doesn't have any yet
self.peerings["mnter"][mnt] = [asn]
try:
# there are no peerings for this asn -> can't edit nothing...
if not asn in self.peerings["asn"]:
return False
return False, 404
except KeyError:
return False
# this should only happen if "asn" not in self.peerings
return False, 404
success = False
for pNr in range(len(self.peerings["asn"][asn])):
@ -185,23 +196,31 @@ class PeeringManager:
new_peering = self.peerings["asn"][asn][pNr] = {"MNT": mnt, "ASN": asn, "node": node, "wg_key": wg_key,
"endpoint": endpoint, "ipv6ll": ipv6ll, "ipv4": ipv4, "ipv6": ipv6, "bgp_mp": bgp_mp, "bgp_enh": bgp_enh}
success = True
peering_number = pNr
if not success:
return False
# notify the node
success, code = self._update_nodes("update", old_peering, new_peering=new_peering)
if not success:
# revert updating peering
self.peerings["asn"][asn][peering_number] = old_peering
return False, code
else:
self._save_peerings()
self._update_nodes("update", old_peering, new_peering=new_peering)
return True
self._save_peerings()
return True, code
def delete_peering(self, asn, node, mnt, wg_key=None):
if not self.exists(asn, node, mnt=mnt, wg_key=wg_key):
return False
return False, 404
for p in self.peerings["asn"][asn]:
if p["node"] == node:
if wg_key and p["wg_key"] != wg_key:
continue
self.peerings["asn"][asn].remove(p)
self._save_peerings()
self._update_nodes("delete", peering=p)
return True
success, code = self._update_nodes("delete", peering=p)
print(f"DELETE: {asn} on {node}: {success}, {code}")
return success, code
# if nothing got found (should have been catched by self.exists)
return False
return False, 404